Coal-loading machine



H. T. FRANKLIN.

COAL LOADING MACHINE.

. APPLICATIONVFILED Nov.2s. x915.

Patented May 27, 1919.

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H. T. FRANKLIN.

COAL LOADING MACHINE.

APPLICATION EILED NOV.25,'l9l8 Patented May 27, 1919.

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UNITED STATES P TENT OFFICE.

HENRY rIIAnEousrRANKLIN, or nAwMo r, wns'r IRGINIA, ASSIGNOR or ONE- HALF r0 MATT-EDWARD noon, on DAWMONT, wnsr VIRGINIA.

COAL-LOADING- MAGHIN E.

Specification of Letters Patent.

Patented May 2'7, 1919.

Application filed November 26, 1918. Serial No. 264,194.

To all whom it may concern:

had to the accompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

Figure 1 is a side view of the invention with shovel retracted and lowered.

Fig. 2 is a similar view with shovel raised.

Fig. 3 is a similar view partly in section and broken away, showing the shovel thrust forward.

The invention has relation to coal loading machines, designed to load the mined coal upon the car in the mine, having for its object to relieve the miner of much laborious work in lifting the coal and throwing it upon the mine car, and to accomplish the loading of the coal more rapidly.

The invention consists in the novel construction and combinations of parts, as here-' inafter set forth.

In the accompanying drawings illustrating the invention, the numeral 2 designates a post or standard, having at its upper and lower ends rotatable supporting engagement with the floor and roof of the mine, and fulcrumed to said post at 3 is an arm or beam 4:, adapted for movement in a vertical plane, or upwardly and downwardly, through operation of a hand lever 5, the latter having a flexible rope or cable connection 6 with the free end of said arm, an intermediate lever 7 being fulcrumed to said post at 8, and being operated by said hand lever to assist in raising said arm. At the end portion of the upward movement of said arm, the hand lever acts through the medium of said intermediate lever alone, the cable being slack.

A shovel 9 is carried by the outer end portion of the arm 4 through the medium of links 10 and 11, respectively pivoted to the arm, said links being respectively pivotally connected to the shovel at the outer or free end of the handle of the latter and intermediately of the length of said handle.

The shovel is designed to be worked forwardly and backwardly as a workman would operate it in throwing coal upon the car, and tothis end a hand lever 12 pivotedto the post at 3, has a rod connection l lwith the upper end of the rear link 10, and upon operation thereof in one direction or forwardly will withdraw or retract the shovel and at the same time put a coiled spring 13 under tension, said spring connecting the rear end portion of the handle of the shovel with the forward end of the arm 1, *and the tension of the spring being held or maintained by a pawl 15 carried by the hand lever 12 and engaging the teeth of a rack 16 upon said arm.

It being then desired to throw orthrust the shovel forwardly into the coal pile by a sudden movement, the pawl 15 is knocked down out of engagement with the rack 16 by a blow upon the handle end thereof, the spring 13 at once acting to accomplish the desired quick throw of the shovel.

The shovel being now located in the coal pile is lifted thereout by an upward movement of the arm l brought about by operation of the hand lever 5, the shovel carrying therewith itsload of coal, and the lifting movement of arm and shovel being stopped when the shovel has arrived at a proper degree of elevation to retain its load, the

shovel being then substantially horizontal or slightly tilted rearwardly.

The shovel being in the raised position stated, elevated above the coal pile, is given a bodily movement of rotation through rotary movement of the post 2, in order that the shovel may be placed in position adapted for discharge upon the mine car, this dis charge being accomplished by a second working of the hand lever and operation of the spring 13 as first described for these parts. I

In the quick movement or thrust of the shovel last stated it is necessary to stop the shovel suddenly, in order that its load of coal may leave it properly or be properly discharged upon the mine car, and. to this end the handle of the shovel where it is pivoted to the link 11 engages a slot 18 of said link, and contacts with the upper beveled wall 19 of said slot, the rear link 10 that commonly employed in manual operation, the necessity for raising the arm 4 to a height sufficient for a dumping discharge is obviated.

I claim 1. Means for loading coal, consisting of a post, an arm pivoted to said post, a shovel having a handle provided with link connection with said arm, a spring connecting the arm with said handle, a hand lever having connection with the rear link to retract the shovel and put said spring under tension, releasable means for retaining said lever in position with the spring under tension, said spring acting to thrust the shovel forwardly upon release of said retaining means, and means for raising the arm and the shovel.

2. Means for loading coal, consisting of a post, an arm pivoted to said post, a shovel having a handle provided with link connection with said arm, a spring connecting the arm With said handle, a hand lever having connection with the rear link to retract the shovel and put said spring under tension, releasable means for retaining said lever in position with the spring under tension, said spring acting to thrust the shovel forwardly upon release of said retaining means, the link connection of the shovel handle with said arm being adapted to suddenly check the forward thrust of the shovel in the discharge of its load, and means for raising the arm and the shovel.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY THADEOUS FRANKLIN.

Witnesses:

MATT E. Hoon, G. H. DUTHIE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

